Problem Solving with Multiplication and Division
Multiplication and Division
Applying multiplication and division to solve one- and two-step word problems. Identifying which operation to use and checking the reasonableness of answers.
Learning Material
4 pagesReading and Understanding Word Problems
Reading and Understanding Word Problems#
Word problems take math out of the classroom and put it into real-life situations. Many students find word problems challenging — not because of the math, but because of the reading and understanding. Let's learn how to approach them step by step.
Why Word Problems Matter#
In real life, math problems do not come labeled as "multiply 6 × 8." Instead, you figure out what math to do from the situation. Word problems build this important skill.
A 4-Step Strategy for Word Problems#
Step 1: Read carefully Read the problem at least twice. Do not rush. Make sure you understand what is happening in the story.
Step 2: Identify what you know and what you need to find
- What information is given?
- What is the question asking? Circle or underline the key numbers and the question.
Step 3: Choose your operation Decide whether to multiply or divide (or both for two-step problems).
Step 4: Solve and check Solve the problem, then check: Dös my answer make sense?
Key Words That Signal Multiplication#
Look for these words to know when to multiply:
- each, every, per, groups of, rows of, altogether, total, times
Example: There are 6 baskets, and each basket holds 8 oranges. How many oranges altogether?
Key words: each and altogether → multiply: 6 × 8 = 48
Key Words That Signal Division#
Look for these words to know when to divide:
- share equally, split, divide, how many each, how many groups, separate into equal
Example: 36 students are split into equal groups of 9. How many groups are there?
Key word: split into equal groups → divide: 36 ÷ 9 = 4
A Caution About Key Words#
Key words are helpful, but do not rely on them alone! Always read the whole problem and understand the situation before deciding which operation to use.